/**
 * 
 */
package hihocoder;

import java.util.Scanner;

/**
 * @author zhongfang
 *
 */
public class 元素魔法 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int k = scanner.nextInt();// 种数
		double a = scanner.nextDouble();
		double[] w = new double[k];
		for (int i = 0; i < k; i++) {
			w[i] = scanner.nextDouble();
		}
		scanner.close();

	}

}
